I'd have to look up the exact numbers, but both volume and weight for a given energy are at least 2x more than lithium-ion. Close to lead-acid for energy density. But they are supposed to be quite good in terms of power density. High C rate for both charge and discharge. These seem ideal for standby power applications, like a UPS or a solar system.

(Pic Cap:Lithium metal dendrite, taken with cryogenic electron microscopy or cryo-EM, shows that freezing has preserved its original state, revealing that it's a crystalline nanowire with six well-defined facets. Dendrites can pierce the barrier between battery chambers and trigger fires; cryo-EM is the first technique that can image them in atomic detail without damaging them. Credit: Y. Li et al., Science)

Starts:

Scientists from Stanford University and the Department of Energy's SLAC National Accelerator Laboratory have captured the first atomic-level images of finger-like growths called dendrites that can pierce the barrier between battery compartments and trigger short circuits or fires. Dendrites and the problems they cause have been a stumbling block on the road to developing new types of batteries that store more energy so electric cars, cell phones, laptops and other devices can go longer between charges.

This is the first study to examine the inner lives of batteries with cryo-electron microscopy, or cryo-EM, a technique whose ability to image delicate, flash-frozen proteins and other "biological machines" in atomic detail was honored with the 2017 Nobel Prize in chemistry.

More specific, the "eutectic" is a alloy that has no slush zone in solidifying in my understanding. It goes right from a liquid to solid. The iterdigitated part on a nano scale no less? Done by simple rolling out the clad metals! This has some huge implications IMO. Both metals are suitable for vapor dep also.

The supervising professor for the eutectic metals battery worked with the Li-ion inventor Goodenough in the 1980's... He knows a lot about the competing chemistries and he talks like an endless fountain of nanocomposition reactive chemistry speak. Here is cited by 50 articles in 2017, here is his review of current technologies. http://pubs.acs.org/doi/full/10.1021/acscentsci.7b00288

Yeah to a point. Even galvanized steel will corrode if exposed long enough to hard environment. Audi used to galvanize their cars, costly and only with moderate success. Net result also galvanized Audi will get eaten by rust, it just takes a little longer.

Even aluminum corrodes in salty winter clima. Not like steel where you can have rusting from the inside out if your out of luck and not as fast. But corroding never the less.

Kick down the barricades Listen what the kids say.
From time to time people change their minds But the Frock is here to stay.
I've seen it all from the bottom to the top Everywhere I go the kids wanna Frock.
Around the world or around the block Everywhere I go the kids wanna Frock.

Energy Storage Systems
The strategy of creating super sports cars with uncompromising performance generates Lamborghini’s motivation to revolutionize the approach to energy storage, moving away from conventional batteries and investigating the potential of supercapacitors to equip the Terzo Millennio. This is in line with the application of low voltage supercapacitors in the V12 Aventador, which started five years ago. The next logical step is the development of a storage system able to deliver high peak power and regenerate kinetic energy with very limited influence from aging and cycling during the vehicle’s life, and with the ability to symmetrically release and harvest electric power. Thus, the collaboration with Prof. Mircea Dinca is aiming to overcome the limits of today’s technology and close the gap on conventional batteries’ energy density while preserving the high power, symmetrical behavior and the very long lifecycle related to supercapacitor technology. Prof. Dinca says: "The new Lamborghini collaboration allows us to be ambitious and think outside the box in designing new materials that answer energy storage challenges for the demands of an electric sport vehicle. We look forward to teaming up with their engineers and work on this exciting project". Innovative materials To support this revolution in energy storage systems, materials and their functions have to change, too. Lamborghini aims to further develop its leadership in the design and production of carbon fiber structures and parts, enhancing its ability to develop features and functions that take lightweight materials to the next level. For this reason, the cooperation with Prof. John Hart will investigate the new manufacturing routes for carbon fiber materials constituting the bodyshell of the Terzo Millennio, which will also act as an accumulator for energy storage and enable the complete body of the car to be used as a storage system. Prof. Hart says, “we are thrilled to combine our expertise in advanced materials and manufacturing with the vision and support of Automobili Lamborghini, and to realize new concepts that will shape the future of transportation.” The project also aims to combine the technology to continuously monitor the whole carbon fiber structure, both visible and invisible, with the concept of “self-healing”: the target is to provide the Terzo Millennio with the ability to conduct its own health monitoring to detect cracks and damages in its substructure derived from accidents. In this case a self-repairing process starts via micro-channels filled with healing chemistries, reducing to zero the risks of small cracks propagating further in the carbon fiber structure.

At press time, Lamborghini only said "No Comment" when asked if the Terzo will be easy to pedal.

Fisker’s solid-state batteries will feature three-dimensional electrodes with 2.5 times the energy density of lithium-ion batteries. Fisker claims that this technology will enable ranges of more than 500 miles on a single charge and charging times as low as one minute—faster than filling up a gas tank. Fisker anticipates the technology to be automotive production grade ready from 2023 onwards.

Brownian motion has been around for a long time which is free energy. Is it possible to tap the quantum energy of a two dimensional material?

Nope. Those pesky laws of thermodynamics again.

I am sceptical of the claims but don't understand the connection between thermal Dynamics and quantum chaos? Brownian motion is the movement of microscopic objects from quantum energy. Quantum physics and regular physics are incompatible. Since spontaneous quantum energy is every where it cancels itself out at the macro level and doesn't affect normal physics but it is energy from nothing. They are claiming to use this energy on a two dimensional material to produce electrity. Just curious how thermodynamics makes that impossible?

Not really. They are just two systems for looking at the same physics. "Regular" physics uses approximations that break down at very small feature levels, but those approximations are well characterized.

Since spontaneous quantum energy is every where it cancels itself out at the macro level and doesn't affect normal physics but it is energy from nothing. They are claiming to use this energy on a two dimensional material to produce electrity. Just curious how thermodynamics makes that impossible?

There are several perpetual motion machines that claim to utilize such sources of power.

The original claim had two parts. First part is "Brownian motion has been around for a long time which is free energy." A machine that attempts to capture this is called a type 2 perpetual motion machine - one that converts thermal energy directly to useful (mechanical, electrical or gravitational potential) energy. This violates the second law of thermodynamics, which states that the entropy of an isolated system always increases or remains constant.

The second part of the claim is "Is it possible to tap the quantum energy of a two dimensional material?" There's no one thing called "quantum energy" just as there's no one thing called "normal energy." However, the phenomenon most commonly used as a claim for "tapping the quantum energy" is "zero point energy" - a phenomenon that is misunderstood to cause people to believe that the vacuum has free energy available to tap. Zero point energy refers to the fact that even when a system is at its lowest possible energy state, that state cannot be zero due to Heisenberg's Uncertainty Principle. Thus gases, particles, photons and even vacuum cannot have an absolute zero energy state - it can only come close. However, this remaining energy is impossible to tap, again due to the uncertainty principle.

The university’s researchers found that lithium ion batteries, commonly used in phones and electric cars, as well as the rechargeable sodium-ion units, make use of organic electrolytes to facilitate the flow of the electrical charge. The presence of lithium salts and solvents in the electrolytes make batteries more flammable, with nonflammable electrolytes found to have a negative effect on a battery’s performance.

In the study, published in the journal Nature Energy, the team used a solvent called trimethyl phosphate (TMP) and found that electrolytes containing TMP lasted as long, and in some cases longer, than a lithium-ion battery. Added salt reduced the volatility in the mixture, meaning the battery remained stable in temperatures up to 150 degrees Celsius (302 degrees Fahrenheit). When the battery was heated above 150 degrees, the TMP solution immediately put out the resulting fire.